CN112402768A - Guide head structure at end part of pipe body, bonding process and guide head bonding die - Google Patents
Guide head structure at end part of pipe body, bonding process and guide head bonding die Download PDFInfo
- Publication number
- CN112402768A CN112402768A CN202011188440.6A CN202011188440A CN112402768A CN 112402768 A CN112402768 A CN 112402768A CN 202011188440 A CN202011188440 A CN 202011188440A CN 112402768 A CN112402768 A CN 112402768A
- Authority
- CN
- China
- Prior art keywords
- guide head
- bonding
- plug
- plug body
- end cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
- A61M25/001—Forming the tip of a catheter, e.g. bevelling process, join or taper
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/32—General characteristics of the apparatus with radio-opaque indicia
Abstract
The invention discloses a guide head structure at the end part of a pipe body, a bonding process and a guide head bonding die. The plug body of the invention contains barium developer. The guide head bonding process comprises the steps of placing a prefabricated plug body into a bonding mold, injecting glue into the bonding mold, inserting one end of a pipe body to be connected with the plug body into the glue, and bonding the plug body and a catheter after the glue is cured and molded. By utilizing the guide head bonding process for the end part of the pipe body, the bonding efficiency of the plug body and the pipe body can be greatly improved, the processing efficiency is high, and the yield is high.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a guide head structure of a tube body end part, a bonding process and a guide head bonding die.
Background
For the elderly, the disabled or other people who are bedridden for a long time, the elderly, the disabled or other people who cannot have mobility ability, the patients mostly need to be bedridden for a long time, and the urinary catheters are generally used for leading out urine in the bladder of the patients to solve the problems of urine retention and the like because the patients cannot urinate autonomously, so that the market demand of the urinary catheters is huge. The catheter mainly comprises a guide head and a tube body, and developer is usually compounded in the guide head so as to prevent the catheter from being taken out conveniently when the catheter accidentally falls off to the viscera of a human body.
Most of the prior art manually and directly bond the plug and the tube body by glue solution, so that the outer surface of the glue layer at the joint of the plug and the tube body is not smooth or uneven in glue solution distribution, and the surface of the glue layer is not flat and needs to be manually treated for the second time, so that the processing efficiency of the catheter is extremely low.
Referring to fig. 5, at present, after injecting a glue solution containing a developing agent into a plug mold 5, the end part of the catheter is immersed below the liquid level of the glue solution 6, and then the glue solution is heated to be solidified into a plug and integrally connected with the catheter. However, the plug forming effect is difficult to ensure by adopting the method, the smoothness of the outer surface is poor, and the yield is still low.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide a guide head structure of a pipe body end part, a bonding process and a guide head bonding die.
The guide head structure at the end part of the pipe body comprises a plug body and the pipe body, wherein the plug body is connected with the end part of the pipe body in an adhesive mode, the plug body is bonded with the pipe body after being prefabricated and formed, a developer is contained in the plug body, a first adhesive layer is arranged between the surfaces, close to the pipe body, of the plug body, and the guide head structure further comprises a second adhesive layer integrally connected with the first adhesive layer, the second adhesive layer covers the outer side wall of the area, close to the pipe body, of the plug body and the pipe body, and is connected with the outer surfaces of the areas, without the second adhesive layer, of the outer surfaces of the plug body and the pipe body to form a smooth surface. Therefore, the guide head structure of the present invention has a smooth outer surface at the connection area of the tube body and the plug body, and forms a smooth outer surface with the surfaces of the plug body and the tube body.
Furthermore, a third adhesive layer is arranged inside one end of the pipe body connected with the plug body.
Furthermore, the plug body has elasticity.
Further, the developer is barium.
The invention also provides a catheter which comprises the guide head structure.
The invention also provides a guide head bonding process of the end part of the pipe body, which is used for bonding the plug body and the pipe body.
Further, the guide head bonding process of the end part of the pipe body comprises the following steps:
(1) prefabricating and molding a plug body containing a developer;
(2) placing the plug body obtained in the step (1) in a bonding mould, wherein the middle part of the bonding mould is provided with an accommodating cavity for accommodating the plug body and the end part of a pipe body connected with the plug body;
(3) and injecting glue solution into one side of the plug body connected with the tube body, and inserting the end part of the catheter into the glue solution and immersing the end part of the catheter into the glue solution. The process can be used for quickly bonding the plug body with the tube body, after the tube body is inserted with glue solution, a small amount of glue solution flows out from the space between the tube body and the plug body, and under the action of the bonding mould, after the glue solution is cured, the outer surface of the end part provided with the plug body is smooth, and the yield is high.
Furthermore, a smooth connecting surface protruding towards the axial center line far away from the plug body and the tube body is arranged in the area, connected with the plug body and the tube body, of the bonding mold, and a glue containing gap used for containing glue liquid is formed among the connecting surface, the plug body and the tube body. Therefore, when the pipe body is spliced with the plug body, the glue liquid can flow into the glue containing gap, the glue liquid between the pipe body and the plug body is ensured to be filled in place, and meanwhile, the connecting surface is a smooth surface, so that the glue liquid flowing out of the glue containing gap can be integrally formed with the plug body and the pipe body to form a smooth outer surface after being cured and formed, and the smoothness of the outer surface of the guide head structure is good.
The invention also provides a guide head bonding die which is used for bonding the plug body and the tube body and comprises a die main body, wherein a containing cavity is arranged in the middle of the die main body, the containing cavity comprises a first cavity body matched with the plug body in shape and a second cavity body used for being clamped into the tube body, smooth connecting surfaces protruding from the surfaces, close to each other, of the first cavity body and the second cavity body to the axial center line far away from the plug body and the tube body are formed, and a glue containing gap used for containing glue liquid is formed among the connecting surfaces, the plug body and the tube body. By utilizing the guide head bonding die, the middle of the pipe body and the plug body can be fully filled with glue solution, a small amount of glue solution can overflow into the glue containing gap, and the outer surface of the connecting area of the plug body and the guide pipe of the guide head is smooth under the action of the connecting surface.
Furthermore, an exhaust hole communicated with the outside is formed in one side, far away from the pipe body, of the guide head bonding die.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is an enlarged partial schematic view at A of FIG. 1;
FIG. 3 is a schematic cross-sectional view of a bonding mold according to a second embodiment of the present invention;
FIG. 4 is a schematic diagram of a third embodiment of the present invention;
fig. 5 is a schematic view of a structure of a guide head of a pipe end in the related art.
In the figure, the position of the upper end of the main shaft,
1. a pipe body; 2. a plug body; 3. an adhesive layer; 31. a first adhesive layer; 32. a second adhesive layer; 33. a third adhesive layer; 4. bonding the mold; 41. an accommodating chamber; 411. an opening; 412. a first cavity; 413. a second cavity; 414. a connecting surface; 42. an exhaust hole; 5. a plug mold; 6. and (5) glue solution.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
The first embodiment is as follows:
referring to fig. 1 and 2, a preferred embodiment of a guide head structure for a pipe end portion of the present invention includes a pipe body 1 and a plug body 2 located at one end portion of the pipe body 1, wherein the plug body 2 is adhesively connected to the end portion of the pipe body 1, and an adhesive layer 3 is disposed on a surface of the plug body 2 adjacent to one side of the pipe body 1 and inside one end of the pipe body 1 connected to the plug body 2. The adhesive layers include a first adhesive layer 31 located in the middle of the surface of the plug body, which is close to the tube body, a second adhesive layer 32 covering the outer side wall of the region of the plug body 2, which is close to the tube body 1, and a third adhesive layer 33 inside the end of the tube body 1, which is connected to the plug body 2. The first adhesive layer 31, the second adhesive layer 32 and the third adhesive layer 33 are integrally connected. The second adhesive layer 32 is joined to the outer surfaces of the plug body 2 and the tube body 1 in the area not covered by the second adhesive layer to form a smooth surface.
The plug body of this embodiment contains a barium developer (e.g., barium sulfate).
In a preferred embodiment of this embodiment, the plug body 2 is made of a material with elasticity, such as silica gel or rubber.
The catheter body 1 of this embodiment can be used as a urinary catheter, and when it is used for catheterization, the catheter body is preferably made of elastic flexible material, preferably made of silica gel.
Example two:
referring to fig. 3, the embodiment is a guide head bonding mold 4, which is used for bonding a plug body 2 and a tube body 1, and includes a mold main body, a containing cavity 41 is disposed in the middle of the mold main body, the containing cavity 41 includes a first cavity 412 matching with the shape of the plug body 2 and a second cavity 413 for being clamped into the tube body 1, a smooth connecting surface 414 protruding towards an axial center line far away from the plug body 2 and the tube body 1 is disposed on the surface of the containing cavity 41 in the middle of the first cavity 412 and the second cavity 413, and a glue containing gap for containing glue is formed between the connecting surface 414 and the plug body 2 and the tube body 1. An exhaust hole 42 communicating with the outside is provided on the side of the bonding die 4 away from the pipe body.
Example three:
referring to fig. 4, this embodiment is a process for bonding the plug body 2 of the guide head structure of the first embodiment to the tube body 1, and includes the following steps:
(1) after the barium agent and the silica gel base material are mixed uniformly, the silica gel base material is pre-molded in a mold to obtain a plug body 2 with one round end and the other flat end as shown in the attached drawing 1;
(2) placing the plug body 2 obtained in the step (1) in the bonding mold 4 of the second embodiment, wherein one side of the plug body 2 connected with the tube body 1 is located at one end close to the opening 411 of the accommodating cavity 41, and injecting glue solution into one side of the plug body 2 close to the opening 411 at the opening 411;
(3) the end part of the tube body 1 is inserted into the accommodating cavity 41 and fully contacted with the glue solution, the glue solution is extruded by the tube body 1 and flows into the glue accommodating gap, and the plug body 2 is bonded with the tube body 1 after the glue solution is cured and molded. Under the action of the connecting surface 414, the outer surface of the connecting part of the plug body 2 and the pipe body 1 of the obtained guide head structure can be smooth.
By utilizing the process, the processing efficiency of the guide head structure is high, the yield is high, and the outer surfaces of the plug body 2 and the pipe body 1 of the guide head structure are smooth and flat.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a guide head structure of end of body, includes end cap body and body, the end cap body with the tip adhesive connection of body, its characterized in that, the end cap body after the prefabrication shaping with the body bonds mutually, the end cap body contains the developer the end cap body with the body is close to each other be provided with first adhesive layer in the middle of the surface, still include with the second adhesive layer of first adhesive layer body coupling, the second adhesive layer cover in the regional lateral wall that is close to each other of end cap body and body to form smooth surface with the regional surface connection of the no second adhesive layer of end cap body and body surface.
2. The structure of the guide head at the end of the pipe body as claimed in claim 1, wherein a third adhesive layer is disposed inside the end of the pipe body connected to the plug body.
3. The structure of the guide head at the end of the pipe body as claimed in claim 2, wherein the plug body is elastic.
4. The guide head structure at the end of the pipe body according to claim 3, wherein the developer is barium.
5. A catheter comprising a guide head construction according to any one of claims 1 to 4.
6. A guide head bonding process of a tube body end part, which is used for bonding the plug body of any one of claims 1 to 4 with a tube body.
7. A process of bonding a tube end guide as claimed in claim 6, including the steps of:
(1) prefabricating and molding a plug body containing a developer;
(2) placing the plug body obtained in the step (1) in a bonding mould, wherein the middle part of the bonding mould is provided with an accommodating cavity for accommodating the plug body and the end part of a pipe body connected with the plug body;
(3) and injecting glue solution into one side of the plug body connected with the tube body, and inserting the end part of the catheter into the glue solution and immersing the end part of the catheter into the glue solution.
8. A guide head bonding process for a pipe end according to claim 7, wherein a smooth connecting surface protruding towards an axial center line far away from the plug body and the pipe body is arranged in a region of the bonding die where the plug body and the pipe body are connected, and a glue containing gap for containing glue is formed between the connecting surface and the plug body and between the connecting surface and the pipe body.
9. The utility model provides a direction head bonding mould for bond end cap body and body, its characterized in that, including the mould main part the middle part of mould main part is provided with and holds the chamber, hold the chamber include with the first cavity of shape assorted of end cap body and the second cavity that is used for the card income body the surface that is close to each other of first cavity and second cavity is to keeping away from the outstanding smooth face of connecting of axial centerline of end cap body and body, it forms the appearance clearance that is used for holding the glue solution with the middle of end cap body and the body to connect the face.
10. A guide head bonding die as claimed in claim 9, wherein a vent hole is provided in the bonding die on a side thereof remote from the tube body to communicate with the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011188440.6A CN112402768A (en) | 2020-10-30 | 2020-10-30 | Guide head structure at end part of pipe body, bonding process and guide head bonding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011188440.6A CN112402768A (en) | 2020-10-30 | 2020-10-30 | Guide head structure at end part of pipe body, bonding process and guide head bonding die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112402768A true CN112402768A (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011188440.6A Pending CN112402768A (en) | 2020-10-30 | 2020-10-30 | Guide head structure at end part of pipe body, bonding process and guide head bonding die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112402768A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3812860A (en) * | 1973-04-05 | 1974-05-28 | Int Paper Co | Retention catheter |
| CN203090198U (en) * | 2013-02-01 | 2013-07-31 | 海盐康源医疗器械有限公司 | Built-in balloon silica gel urinary catheter |
| CN205181967U (en) * | 2015-04-08 | 2016-04-27 | 江苏伟康洁婧医疗器械有限公司 | Disposable aseptic silica gel catheter |
| CN108939258A (en) * | 2018-05-02 | 2018-12-07 | 苏州贝恩医疗器械有限公司 | A kind of preparation process and purposes of double channel catheter |
| CN208694014U (en) * | 2017-01-13 | 2019-04-05 | 唐艳辉 | A kind of anticlogging balloon expandable catheter |
-
2020
- 2020-10-30 CN CN202011188440.6A patent/CN112402768A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3812860A (en) * | 1973-04-05 | 1974-05-28 | Int Paper Co | Retention catheter |
| CN203090198U (en) * | 2013-02-01 | 2013-07-31 | 海盐康源医疗器械有限公司 | Built-in balloon silica gel urinary catheter |
| CN205181967U (en) * | 2015-04-08 | 2016-04-27 | 江苏伟康洁婧医疗器械有限公司 | Disposable aseptic silica gel catheter |
| CN208694014U (en) * | 2017-01-13 | 2019-04-05 | 唐艳辉 | A kind of anticlogging balloon expandable catheter |
| CN108939258A (en) * | 2018-05-02 | 2018-12-07 | 苏州贝恩医疗器械有限公司 | A kind of preparation process and purposes of double channel catheter |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211230 Address after: 223600 No. 18 Wenzhou Road, Shuyang Economic Development Zone, Suqian, Jiangsu. Applicant after: JIANGSU WEIAKANG JIEJING MEDICAL APPARATUS Co.,Ltd. Address before: 215000 89 wangmi street, high tech Zone, Suzhou City, Jiangsu Province Applicant before: SUZHOU WEIKANG MEDICAL APPARATUS Co.,Ltd. |
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| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210226 |
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| RJ01 | Rejection of invention patent application after publication |